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-rw-r--r--lib/rubygems/commands/rebuild_command.rb12
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/rubygems/commands/rebuild_command.rb b/lib/rubygems/commands/rebuild_command.rb
index 234d0af856..9747171e5c 100644
--- a/lib/rubygems/commands/rebuild_command.rb
+++ b/lib/rubygems/commands/rebuild_command.rb
@@ -11,6 +11,10 @@ class Gem::Commands::RebuildCommand < Gem::Command
def initialize
super "rebuild", "Attempt to reproduce a build of a gem."
+ add_option "--diff", "If the files don't match, compare them using diffoscope." do |_value, options|
+ options[:diff] = true
+ end
+
add_option "--force", "Skip validation of the spec." do |_value, options|
options[:force] = true
end
@@ -150,6 +154,14 @@ An example of reproducing a gem build:
say "SUCCESS - original and rebuild hashes matched"
else
say "FAILURE - original and rebuild hashes did not match"
+
+ if options[:diff]
+ say
+ if system("diffoscope", old_file, new_file).nil?
+ alert_error "error: could not find `diffoscope` executable"
+ end
+ end
+
terminate_interaction 1
end
end